feat: 用户端显示金山文档在线状态

- 新增 /api/kdocs/status 接口（用户端简化版）
- 工具栏显示"表格上传: ✅ 就绪"或"⚠️ 离线"
- 页面加载时获取状态，每60秒自动刷新
- 系统未启用时不显示

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

templates/index.html

@@ -552,6 +552,12 @@
                         <label class="checkbox-wrapper"><input type="checkbox" id="selectAll" onchange="toggleSelectAll()"><span>全选</span></label>
                         <span style="color: var(--md-on-surface-medium); font-size: 13px;">已选 <span id="selectedCount">0</span> 个</span>
                     </div>
+                    <div class="toolbar-group" id="kdocsStatusGroup" style="display: none;">
+                        <span style="font-size: 13px; color: var(--md-on-surface-medium);">
+                            表格上传:
+                            <span id="kdocsStatusBadge" style="display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 500;"></span>
+                        </span>
+                    </div>
                     <div class="toolbar-divider"></div>
                     <div class="toolbar-group">
                         <select class="select-inline" id="batchBrowseType">
@@ -1141,6 +1147,33 @@
 	            }
 	            closeAnnouncementOnce();
 	        }
+        // 加载金山文档在线状态
+        function loadKdocsStatus() {
+            fetch('/api/kdocs/status')
+                .then(r => r.json())
+                .then(data => {
+                    var group = document.getElementById('kdocsStatusGroup');
+                    var badge = document.getElementById('kdocsStatusBadge');
+                    if (!data.enabled) {
+                        group.style.display = 'none';
+                        return;
+                    }
+                    group.style.display = '';
+                    if (data.online) {
+                        badge.innerHTML = '✅ 就绪';
+                        badge.style.background = '#E8F5E9';
+                        badge.style.color = '#2E7D32';
+                    } else {
+                        badge.innerHTML = '⚠️ 离线';
+                        badge.style.background = '#FFF3E0';
+                        badge.style.color = '#E65100';
+                    }
+                })
+                .catch(function() {
+                    document.getElementById('kdocsStatusGroup').style.display = 'none';
+                });
+        }
+
         document.addEventListener('DOMContentLoaded', function() {
             initTabs();
             loadVipStatus();
@@ -1150,7 +1183,9 @@
             loadSchedules();
             loadScreenshots();
             checkAccountLimit();
+            loadKdocsStatus();  // 加载金山文档状态
             setInterval(loadStats, 30000);
+            setInterval(loadKdocsStatus, 60000);  // 每60秒刷新一次状态
             setupImagePreviewEvents();
             // 周日期选择器点击事件
             document.querySelectorAll('#weekdaySelector .weekday-chip').forEach(function(chip) {